Step 2. Set one O-ring at the 3/8-inch mark, and the other O-ring at the 0-pound mark against the
sleeve. Put the small end of the tensiometer against one of the four drive belts, halfway between the
engine and pump pulleys (Figure 15). Press down on the tensiometer until the O-ring at the 3/8-inch
mark touches the belt next to it. Remove the tensiometer and read the position of the second O-ring that
was moved down the scale by the sleeve. The O-ring should be between the 5- to 7-pound marks for
correct belt tension.
If the belt tension is not between 5 to 7 pounds, loosen the engine mounting bolts to move the engine. If
the belt tension is more than 5 to 7 pounds, move the engine toward the pump. If less then 5 to 7
pounds, move the engine away from the pump. You may have to check the belt tension several times
before you have the right belt tension.
Figure 15. Checking tension of drive belts.
Generator Belts. You will check the generator belt in a similar manner as you did the drive belts.